If you actually call that same number back (805-897-1183), an answering machine picks up and says a bunch of stuff, but they say at the end that if you no longer want them calling you to just leave your phone number as the message. I haven't gotten any more calls since I did that. Hope that helps!
This number called for the first time about two weeks ago. A guy asked me about a charity I donated to. I asked who is calling and he said it's telefund calling on behalf of the charity. I said I am donating only directly to the charity and hung up. Now they call twice a day every day. I don't answer and they hang up on my answering machine.
I get calls, but I don't answer calls I don't recognize. Whoever this is; they don't leave a message. I only use a cell phone, if it's telemarketing, that is illegal. FCC rules state no telemarketing calls to cell phones, it's not necessary to be on the 'do not call' list; it's been illegal for years due to having to pay for incoming and outgoing calls.
I get calls every day on my phone from this number. It says Telefund and I don't answer. They are persistent as they've been calling for months! I have no idea what charity they represent nor do I care! I just ignore them.
Two calls from this number today within a half an hour time span. No message left and now, from reading above, I know why. Thanks to all of you for posting.